Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This project determines what category of person is most likely to be ticklish.

Test whether plants can grow without sunlight and water.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this project children practice the scientific method while playing with puffy paint.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

In this project, different brands of microwave popcorn are tested and compared.

This project tests the hypothesis that dark colors absorb more heat than light colors.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this science project, the center of gravity is explored.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The project investigates how friction affects motion by using different surface textures.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea produces varying pitches of sound.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea examines whether boys and girls differ in reflexes.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

In this project, the affect of acid rain is simulated by the acid, vinegar.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

The project determines which type of birds prefer which type of birdseed.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.